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Use the set {"a", "e", "i", "o", "u"} to test the letters e, x, a and z.
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Use the set {"a", "e", "i", "o", "u"} to test the letters e, x, a and z.
Need a reminder? The key ideaShow
x in s is a fast test.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, compare your working with the solution.
letter in vowels gives True or False.
e:Truex:Falsea:Truez:False
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